clinton's farewell. she tweeted this picture of them smiling side by side. chelsea also tweeted that she was "grateful for my mom's and the remarkable state department's service." she added she was thank follow she signed -- thankful she signed off on her last day as -- thankful to share time with her as she signed off on her last day as secretary of state. >> i am so grateful that we've had a chance to contribute in each of our ways to making our country and our world stronger, safer, fairer, and better. >> clinton's successor as secretary of state is her former senate colleague, john kerry. he was sworn in yesterday, and he's wasting no time getting down to business. an official says he will likely head to the middle east his first overseas trip this month with stops in egypt and israel. >>> to pennsylvania now where thousands gathered early this morning to watch the world's most famous groundhog, punxsutawney phil, make his annual prediction. guess what, folks -- it's going to be an early spring. >> for you and me. so ye faithful, there is no shadow to se